Home / 29,136.87-40,197.15-16,864.20

Finding the Fourth Proportional to 29,136.87, 40,197.15 and 16,864.20

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Solution

The fourth proportional to 29,136.87, 40,197.15 and 16,864.20 is: 23,265.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,136.87 : 40,197.15 = 16,864.20 : x
  2. Step 2: Convert to fraction form
    29,136.87/40,197.15 = 16,864.20/x
  3. Step 3: Cross multiply
    29,136.87x = 40,197.15 × 16,864.20
  4. Step 4: Simplify right side
    29,136.87x = 677,892,777.03
  5. Step 5: Solve for x
    x = 677,892,777.03/29,136.87
  6. Step 6: Final answer
    x = 23,265.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.